In July 2006, SEOMoz released their now famous page strength tool. The idea was to come up with a better metric for evaluating websites than PageRank. According to Seomoz, the page strength tool was “a better metric to quickly assess a site / page’s relative importance and visibility.” The page strength tool did indeed do this and as a result was a success and became very popular.

Aviva Directory then used this tool to build a list of the strongest directories. This list ranked general web directories using the page strength tool. It has become a popular resource, allowing webmasters to find quickly quality directories that are worth submitting to. It added an element of objectivity to the ranking of directories, which previously had been done either purely subjectively, or simply relying on foolbar Pagerank.

However, the page strength tool had a number of limitations and controversies surrounding it. To deal with some of these issues, today SEOMoz has released a new tool to evauate websites, the Trifecta.

We have now had a chance to run this test on most of the directories listed on our strongest directory list. Here are the results, sorted by score (price in brackets):

[…] Like I said above, there are many more good directories out there. The trick to submitting your URL to a directory is to find one that either has a low alexa.com ranking, or is only targeted to your niche topic. Here’s a list of great directories and their details: avivadirectory.com […]

I have submitted my site to several of the suggested directories without any backward links as yet. I believe that it can take a while for the search engines like google to find these links. Thanks very much for the comprehensive list.

Thanks for posting this great resource. I’ve done the top 5 and I’m ranking well, but I need to get more links from quality sites so I can rank for more terms. Any new quality links are very hard to find so this will be real helpful.
Thanks again!

[…] Generate Trusted Directory Links Google (and other search engines) like it when credible sources link to your site. It is known in the Internet community as link building. Although it tends to be a long-term strategy there are some free listing as well as some very effective paid ones that would make a difference. Our friends at SEOmoz published a good list that remains relevant. http://www.avivadirectory.com/downloadblog/?p=341 […]

It is interesting to see how well these directories still hold up now. Two years after this post was created. Obviously the big ones will still hold their value. DMOZ and Yahoo, etc… but I would interested to know if paying for all of the other directories is really worth it.
Or are your dollars better spent in other SEO initiatives?

BTW. SEOmoz actually now has their own list of directories that you can get access to if you are a pro member.